Received a call from this number 22 November 2007 at 1:43 p.m., and again today @ 6:09 p.m. twice.  The first time tonight I gave them a choice message, hung up, and the phone rang immediately after that and I wouldn't answer it.  No message left on voice mail.  Back in November, the number was listed as a cell phone (Powertel of Memphis TN)